Figure 2.
Bone morphogenetic protein (BMP)/BMP antagonist expression in cortex and medulla of the thymus. (a–d) X-gal-based detection of lacZ gene reporter activity for Bmp4 (a), Bmp7 (b), Twsg1 (c), Gremlin (d) (blue) on thymus sections combined with immunohistochemical staining for DEC-205 (CD205, NLDC; brown) to indicate cortical and medullary areas. c, cortex; m, medulla; sc, subcapsular zone (size bar 50 μm).